/*
* Really easy field validation with Prototype
* http://tetlaw.id.au/view/javascript/really-easy-field-validation
* Andrew Tetlaw
* Version 1.5.4.1 (2007-01-05)
* 
* Copyright (c) 2007 Andrew Tetlaw
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
* 
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
* 
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
* 
*/
var Validator = Class.create();
Validator.prototype = {
  initialize : function(className, error, test, options) {
    if (typeof test == 'function') {
      this.options = $H(options);
      this._test = test;
    } else {
      this.options = $H(test);
      this._test = function() {
        return true
      };
    }
    this.error = error || 'Validation failed.';
    this.className = className;
  },
  test : function(v, elm) {
    return (this._test(v, elm) && this.options.all(function(p) {
      return Validator.methods[p.key] ? Validator.methods[p.key](v, elm, p.value) : true;
    }));
  }
}
Validator.methods = {
  pattern : function(v, elm, opt) {
    return Validation.get('IsEmpty').test(v) || opt.test(v)
  },
  minLength : function(v, elm, opt) {
    return v.length >= opt
  },
  maxLength : function(v, elm, opt) {
    return v.length <= opt
  },
  min : function(v, elm, opt) {
    return v >= parseFloat(opt)
  },
  max : function(v, elm, opt) {
    return v <= parseFloat(opt)
  },
  notOneOf : function(v, elm, opt) {
    return $A(opt).all(function(value) {
      return v != value;
    })
  },
  oneOf : function(v, elm, opt) {
    return $A(opt).any(function(value) {
      return v == value;
    })
  },
  is : function(v, elm, opt) {
    return v == opt
  },
  isNot : function(v, elm, opt) {
    return v != opt
  },
  equalToField : function(v, elm, opt) {
    return v == $F(opt)
  },
  notEqualToField : function(v, elm, opt) {
    return v != $F(opt)
  },
  include : function(v, elm, opt) {
    return $A(opt).all(function(value) {
      return Validation.get(value).test(v, elm);
    })
  }
}
var Validation = Class.create();
Validation.prototype = {
  initialize : function(form, options) {
    this.options = Object.extend({
      onSubmit : true,
      stopOnFirst : false,
      immediate : false,
      focusOnError : true,
      useTitles : false,
      onFormValidate : function(result, form) {
      },
      onElementValidate : function(result, elm) {
      }
    }, options || {});
    this.form = $(form);
    if (this.options.onSubmit) Event.observe(this.form, 'submit', this.onSubmit.bind(this), false);
    if (this.options.immediate) {
      var useTitles = this.options.useTitles;
      var callback = this.options.onElementValidate;
      Form.getElements(this.form).each(function(input) { // Thanks Mike!
        Event.observe(input, 'blur', function(ev) {
          Validation.validate(Event.element(ev), {useTitle : useTitles, onElementValidate : callback});
        });
      });
    }
  },
  onSubmit :  function(ev) {
    if (!this.validate()) Event.stop(ev);
  },
  validate : function() {
    var result = false;
    var useTitles = this.options.useTitles;
    var callback = this.options.onElementValidate;
    if (this.options.stopOnFirst) {
      result = Form.getElements(this.form).all(function(elm) {
        return Validation.validate(elm, {useTitle : useTitles, onElementValidate : callback});
      });
    } else {
      result = Form.getElements(this.form).collect(function(elm) {
        return Validation.validate(elm, {useTitle : useTitles, onElementValidate : callback});
      }).all();
    }
    if (!result && this.options.focusOnError) {
      Form.getElements(this.form).findAll(function(elm) {
        return $(elm).hasClassName('validation-failed')
      }).first().focus()
    }
    this.options.onFormValidate(result, this.form);
    return result;
  },
  reset : function() {
    Form.getElements(this.form).each(Validation.reset);
  }
}
Object.extend(Validation, {
  validate : function(elm, options) {
    options = Object.extend({
      useTitle : false,
      onElementValidate : function(result, elm) {
      }
    }, options || {});
    elm = $(elm);
    var cn = elm.classNames();
    return result = cn.all(function(value) {
      var test = Validation.test(value, elm, options.useTitle);
      options.onElementValidate(test, elm);
      return test;
    });
  },
  test : function(name, elm, useTitle) {
    var v = Validation.get(name);
    var prop = '__advice' + name.camelize();
    try {
      if (Validation.isVisible(elm) && !v.test($F(elm), elm)) {
        if (!elm[prop]) {
          var advice = Validation.getAdvice(name, elm);
          if (advice == null) {
            var errorMsg = useTitle ? ((elm && elm.title) ? elm.title : v.error) : v.error;
            advice = '<div class="validation-advice" id="advice-' + name + '-' + Validation.getElmID(elm) + '" style="display:none">' + errorMsg + '</div>'
            switch (elm.type.toLowerCase()) {
              case 'checkbox':
              case 'radio':
                var p = elm.parentNode;
                if (p) {
                  new Insertion.Bottom(p, advice);
                } else {
                  new Insertion.After(elm, advice);
                }
                break;
              default:
                new Insertion.After(elm, advice);
            }
            advice = Validation.getAdvice(name, elm);
          }
          if (typeof Effect == 'undefined') {
            advice.style.display = 'block';
          } else {
            new Effect.Appear(advice, {duration : 1 });
          }
          var adviceContainer = Validation.getAdviceContainer(name, elm);
          if (adviceContainer) {
            adviceContainer.removeClassName('validation-passed');
            adviceContainer.addClassName('validation-failed');
          }
        }
        elm[prop] = true;
        elm.removeClassName('validation-passed');
        elm.addClassName('validation-failed');
        return false;
      } else {
        var advice = Validation.getAdvice(name, elm);
        if (advice != null) advice.hide();
        elm[prop] = '';
        elm.removeClassName('validation-failed');
        elm.addClassName('validation-passed');
        var adviceContainer = Validation.getAdviceContainer(name, elm);
        if (adviceContainer) {
          adviceContainer.removeClassName('validation-failed');
          adviceContainer.addClassName('validation-passed');
        }
        return true;
      }
    } catch(e) {
      throw(e)
    }
  },
  isVisible : function(elm) {
    while (elm.tagName != 'BODY') {
      if (!$(elm).visible()) return false;
      elm = elm.parentNode;
    }
    return true;
  },
  getAdvice : function(name, elm) {
    return $('advice-' + name + '-' + Validation.getElmID(elm)) || $('advice-' + Validation.getElmID(elm));
  },
  getAdviceContainer : function(name, elm) {
    return $('adviceContainer-' + name + '-' + Validation.getElmID(elm)) || $('adviceContainer-' + Validation.getElmID(elm));
  },
  getElmID : function(elm) {
    return elm.id ? elm.id : elm.name;
  },
  reset : function(elm) {
    elm = $(elm);
    var cn = elm.classNames();
    cn.each(function(value) {
      var prop = '__advice' + value.camelize();
      if (elm[prop]) {
        var advice = Validation.getAdvice(value, elm);
        advice.hide();
        elm[prop] = '';
      }
      elm.removeClassName('validation-failed');
      elm.removeClassName('validation-passed');
    });
  },
  add : function(className, error, test, options) {
    var nv = {};
    nv[className] = new Validator(className, error, test, options);
    Object.extend(Validation.methods, nv);
  },
  addAllThese : function(validators) {
    var nv = {};
    $A(validators).each(function(value) {
      nv[value[0]] = new Validator(value[0], value[1], value[2], (value.length > 3 ? value[3] : {}));
    });
    Object.extend(Validation.methods, nv);
  },
  get : function(name) {
    return  Validation.methods[name] ? Validation.methods[name] : Validation.methods['_LikeNoIDIEverSaw_'];
  },
  methods : {
    '_LikeNoIDIEverSaw_' : new Validator('_LikeNoIDIEverSaw_', '', {})
  }
});
Validation.add('IsEmpty', '', function(v) {
  return  ((v == null) || (v.length == 0)); // || /^\s+$/.test(v));
});
Validation.addAllThese([
    ['required', 'This is a required field.', function(v) {
      return !Validation.get('IsEmpty').test(v);
    }],
    ['validate-number', 'Please enter a valid number in this field.', function(v) {
      return Validation.get('IsEmpty').test(v) || (!isNaN(v) && !/^\s+$/.test(v));
    }],
    ['validate-digits', 'Please use numbers only in this field. please avoid spaces or other characters such as dots or commas.', function(v) {
      return Validation.get('IsEmpty').test(v) || !/[^\d]/.test(v);
    }],
    ['validate-alpha', 'Please use letters only (a-z) in this field.', function (v) {
      return Validation.get('IsEmpty').test(v) || /^[a-zA-Z]+$/.test(v)
    }],
    ['validate-alphanum', 'Please use only letters (a-z) or numbers (0-9) only in this field. No spaces or other characters are allowed.', function(v) {
      return Validation.get('IsEmpty').test(v) || !/\W/.test(v)
    }],
    ['validate-date', 'Please enter a valid date.', function(v) {
      var test = new Date(v);
      return Validation.get('IsEmpty').test(v) || !isNaN(test);
    }],
    ['validate-email', 'Please enter a valid email address. For example fred@domain.com .', function (v) {
      return Validation.get('IsEmpty').test(v) || /\w{1,}[@][\w\-]{1,}([.]([\w\-]{1,})){1,3}$/.test(v)
    }],
    ['validate-url', 'Please enter a valid URL.', function (v) {
      return Validation.get('IsEmpty').test(v) || /^(http|https|ftp):\/\/(([A-Z0-9][A-Z0-9_-]*)(\.[A-Z0-9][A-Z0-9_-]*)+)(:(\d+))?\/?/i.test(v)
    }],
    ['validate-date-au', 'Please use this date format: dd/mm/yyyy. For example 17/03/2006 for the 17th of March, 2006.', function(v) {
      if (Validation.get('IsEmpty').test(v)) return true;
      var regex = /^(\d{2})\/(\d{2})\/(\d{4})$/;
      if (!regex.test(v)) return false;
      var d = new Date(v.replace(regex, '$2/$1/$3'));
      return ( parseInt(RegExp.$2, 10) == (1 + d.getMonth()) ) && (parseInt(RegExp.$1, 10) == d.getDate()) && (parseInt(RegExp.$3, 10) == d.getFullYear() );
    }],
    ['validate-currency-dollar', 'Please enter a valid $ amount. For example $100.00 .', function(v) {
      // [$]1[##][,###]+[.##]
      // [$]1###+[.##]
      // [$]0.##
      // [$].##
      return Validation.get('IsEmpty').test(v) || /^\$?\-?([1-9]{1}[0-9]{0,2}(\,[0-9]{3})*(\.[0-9]{0,2})?|[1-9]{1}\d*(\.[0-9]{0,2})?|0(\.[0-9]{0,2})?|(\.[0-9]{1,2})?)$/.test(v)
    }],
    ['validate-selection', 'Please make a selection', function(v, elm) {
      return elm.options ? elm.selectedIndex > 0 : !Validation.get('IsEmpty').test(v);
    }],
    ['validate-one-required', 'Please select one of the above options.',
        function (v, elm) {
          var options = $$('input[name="' + elm.name + '"]');
          return $A(options).any(function(elm) {
            return $F(elm);
          });
        }]
    ]);